User Manual

TX2040 Pocket Transmitter
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The LED flashes green when the battery voltage falls below
6.5V. The unit should not be used when the battery is low as
poor operation may result.
Connecting the audio input
• Connect the microphone or input cable to the six-pin
Lemo socket.
Both positive and negative microphone bias voltages are
provided, enabling the majority of Lavalier microphones to
be used with the TX2040.
Selecting the operating frequency
You can check or change the operating frequency of the
TX2040 via the infra-red control using the SwitchiR.
To check the frequency:
• Press MENU.
The display shows:
FREQUENCY
MHz
Fr
• Align the front of the SwitchiR with the infra-red port on
the TX2040 and press OK.
The display shows the current
frequency; for example:
FREQUENCY
Tx MHz
854.900
To change the frequency:
• Press OK.
The display will alternately flash between showing the
frequency and channel number.
For example:
CHANNEL
01
• Press a or v to scroll through the 32 frequencies read
from the transmitter until the desired frequency or
channel is displayed.
For example:
CHANNEL
32
• Point the SwitchiR at the infra-red port on the TX2040 and
press OK.
If the command was received successfully the display will
show the new set frequency.
For example:
FREQUENCY
Tx MHz
857.950
Otherwise it will show:
Error
• Repeat the above steps if an error message is displayed,
moving the SwitchiR closer to the infra-red port.
Setting the gain
The steps between gain settings 2-9 are approximately 3
to 4dB. Set the gain position so that the Overload indicator
does not flash on during normal operation.